Heel-seat forming machine



July 6, 1937. A-. SANCHIONI HEEL SEAT FORMING MACHINE Filed July 29,1935 2 Sheets-Sheet l July 6, 1937. A. SANCHIONI 2,085,870 7 HEEL SEATFORMING MACHINE Filed July 29, 1935 2 Sheets-Sheet 2 d 0% -mmm iatentedJuly 6, 1937 UNITED STATES 2,085,870 HEEL-SEAT FORMING MACHINE AdolfSztnchioni, Boston, Mass,

United Shoe Machinery Corporation,

assignor to Pater son, N. 5., a corporation of New Jersey ApplicationJuly 29,

3 Claims.

This invention relates to the manufacture of shoes and is illustrated asembodied in a heel-seat fitting machine.

It is an object of the invention to provide a simple machine for quicklyand effectively reducing the heel-seat portions of unattached soles andforming heel-breast receiving shoulders upon the soles.

The various features of the invention will be understood and appreciatedfrom the following detailed description read in connection with theaccompanying drawings, in which- Figure 1 is a view in front elevationof part of a punch press provided with a cutting die and a sole supportin accordance with my invention;

. Fig. 2 is a sectional View taken along the line 2-2 of Fig. 5;

Fig. 3 is a view in perspective of the cuttingdie;

Fig. 4 is a view in perspective of a sole pro- 0 vided with a heel seatand beveled shoulders in accordance with my invention;

Fig. 5 is a view in sectional elevation taken along the line 5-5 of Fig.6, the cutting die being shown in section in proper position so as tobring .25 out the relationship of the parts;

Fig. 6 is a view in front elevation of the sole support; and

Fig. 7 is a view in rear elevation of the sole support.

The illustrated embodiment of the present invention employs areciprocating mechanism which may conveniently be a punch press,preferably a power operated one. Since the construction and operation ofpunch presses are well understood, it is deemed sufiicient to point outthat one general type comprises fundamentally a bed I!) (Fig. 1) and ahead or frame II along which a ram or plunger I2 reciprocatesvertically, being constrained to such movement in a predetermined pathby means of suitable guides 13. The plunger [2 may be actuated from apower which it is deemed necessary to show.

Secured to the plunger 12 by some suitable means is a die block M forsupporting a cutting die l5 (Figs. 1, 3, and 5). The die is providedwith a base I6 and along one edge thereof with a flange H which may befastened by means of studs l8 to the die block l 4 to hold the diesecurely in place with the base l6 horizontal. The cutting edge of thedie lies in a plane, and is inclined at an angle of preferably 45degrees from the plane of the base l6, as shown in Figs. 1 and 5. Withthis construction the die reciprocates versource through a one-cycleclutch, neither of 1935, Serial No. 33,650

tically with the cutting edge thereof inclined to the path ofreciprocation.

Referring to Fig. 3, the cutting edge of the die 55 comprises a loopportion l9 having an open end and two straight edge portions 25 one at 5each end of the loop. The loop it has the shape desired to be given theheel seat of the sole, and is narrower than the width of the heelportion of the sole. The straight edges 20 are of surficient length sothat their free ends extend beyond the sides of the heel portions ofsoles of different sizes. With this construction, when the die 15 isdriven through a properly mounted sole 2| (as will be explainedhereinafter) the die re moves from the sole a horseshoe-shaped piece 22(Fig. 6) leaving a rearwardly extending heel seat or tongue 23 (Figs. 4and 6) and at opposite sides thereof at the shank of the sole beveledshoulders 24.

In order to position the sole properly so that the die I5 can form theheel seat 23 and the beveled shoulders 24', the present inventioncontemplates the use of asupport underlying the path of operation of thedie 15 and provided with a sole engaging face at an inclination likethat of the cutting edge of the die. To this end there is provided aflat heavy bed plate 25 (Figs. 1, 5, 6,,

p and 7) adapted to rest on the bed H) of the punch press and be securedthere by any suitable means. In case the bed of the press has a slidearrangement the under face of the bed'plate 25 may be provided with achannel 26. Secured to the upper face of the bed plate 25 in an uprightposition is a heavy plate 21 extending laterally across the bed plate asshown in Fig. '7 and provided with a squared off top as shown in Fig. 5.

The bed plate 25 and the upright plate 2'! serve to support a heavy solesupporting plate or table 28 (Fig. 5) in an inclined position. To thisend the lower end of the plate '28 is slabbed off at an angle of 45degrees, and at a suitable distance therefrom the rear face of the plate28 is provided with a degree notch adapted to embrace the top andadjacent portion of the front face of the upstanding plate 21. Pins 29are preferably mounted at the front end of the bed plate 25 and projectthereabove in engagement with the front edge of the lower end of theplate 28. The plate 28 may be secured in its inclined position by studs30 (only one shown) which extend upwardly through the bed plate 25 andinto the slabbed 01f end of the plate 28, and by studs 3| which extendthrough the upper portion of the upright plate 21 and into the rear ofth plate 28.

is i

As indicated in Figs. 1 and 5, the construction so far described issecured to the bed In of the press so that the die |5 overlies the plate28 more or less centrally, and with the outer face of the plate 28 andthe cutting edge of the die in inclined parallel planes. Mountedcentrally and removably on the outer face of the plate 28 is a brassstriker plate 32 for receiving the impact of the die. Since the strikerplate 32 has appreciable thickness, below the striker plate 32 (Figs. 5and 6) the plate 28 is provided with a facing plate 33 of the thicknessof the striker plate. As indicated in Figs. 5 and 6, the striker plate32 and the facing plate 33 form the immediate support for the heelportion of the sole 2|.

Since the die |5 reciprocates in a predetermined path and since theinclined plate 28 has a fixed position with respect to that path, thepresent invention contemplates the provision of means for varyingtheposition of the sole on the plate 28 so that the die can operate equallywell upon soles of different lengths. Stated in another way, in orderthat soles of different lengths can all have heel seats formed thereonby the die l5, means are provided for gaging the position of thedifferent supported soles with respect to the die. To this end the frontface of the inclined plate 28 is provided with a narrow channel 34(Figs. 2, 6, and 7) extending from the top of the plate to a point nearits bottom. At its lower end the channel 34 is both widened and deepenedas indicated in Figs. 5 and 6 to form a chamber 35 extending to theslabbed off bottom of the plate 28. Beneath the chamber 35 the bed plateis provided with an opening 36, and the facing plate 33, as shown inFig. 6, is provided with a slot 31 which is preferably wider than thechamber and exposes both it and portions of the plate 23 adjacent thechamber 35.

Mounted in the channel 34 is a shaft 38 the upper end of which extendsbeyond the top of the inclined plate 28 and is provided with a knob 39.The lower portion of the shaft 38 is threaded and extends downwardly toa point adjacent the top of the bed plate 25, preferably being locatedpartially in the bed plate opening 35 as shown in Fig. 6. The shaft 38underlies the striker plate 32 and the facing plate 33 and is providedintermediate its ends with a peripheral groove 40 (Figs. 5 and 6). A pin4| extending slightly into the channel 34 so as to be received by thegroove 40 prevents longitudinal movement of the shaft 38 whilepermitting its rotation.

Threaded to the lower end of the shaft 38 is an abutment 42 for the heelend of the sole. Referring to Figs. 5 and 6, this abutment comprises abody portion 43 adapted to fit in the chamber 35 and slide in engagementwith the side walls thereof, a flat surfaced portion 44 wider than thebody 43 and adapted to slide in the slot 37 in the facing plate 33 andmove over the portions of the inclined plate 28 exposed thereby, and awall 45 projecting outwardly from the flat surfaced portion 44 andagainst which the heel end of the sole rests. The rear face of the wall45 is concave as shown in Figs. 5 and 6 so that it conforms generally tothe curvature of the heel end of the sole; With this construction itwill be seen that the abutment 42 may be caused to move up or down alongthe shaft 38, thereby shifting the position of a sole resting against itso that the sole may be properly positioned longitudinally with respectto the die I5.

In order to provide an indicator for the proper position of the abutment42 for a sole of a given length, the top of the inclined plate 28 isprovided with a gage plate 46 having gage lines or indicia 41 andextending upwardly and rearwardly in a plane cutting the axis of theshaft 38. Beneath the knob 39 the shaft is threaded to receive a pointer48, the free end of which is yoked to embrace the opposite sides of thegage plate 46. With this construction, rotation of the shaft 38 causesboth the pointer 48 and the abutment 42 to move, and by coordinating theabutment 42 with the gage lines 41 in assembling the support theoperative can tell at a glance where to set the abutment for a sole ofany given length. Since the shaft 38 extends beyond the top of theinclined plate 28, it will be seen that when the sole is positioned onthe support (Figs. 1 and 5), the forepart of the sole may engage theknob 39 and be supported thereby.

In order to insure that the sole is properly positioned laterally withrespect to the die IS, the upper portion of the inclined plate 28 isprovided at its sides with rearwardly extending ears 49 which serve tojournal a shaft 50 provided with a knob 5|. Referring to Fig. 7, betweenthe ears 49 the shaft 50 is provided with a right hand threaded portion52 and a left hand threaded portion 53. Each of these oppositelythreaded portions receives a collar 54 from which a pin 55 projects,each pin passing through an elongated opening 55 formed therefor in theinclined plate 28 near the top thereof. These pins are long enough toengage the opposite sides of the shank portion of a sole, and by turningthe knob 5|, soles of varying Widths can be thus engaged laterally. Byproperly threading the collars 54 on the threaded portions 52 and 53when the support is assembled, it will be seen that as the knob 5! isturned, the pins 55 always move equal distances towards or from thecenter of the inclined plate 28, thereby relieving the operative ofgaging the sole laterally with his eye and insuring that regardless ofthe width of the sole, the lateral gaging thereof will always beaccurate.

Referring now to Fig. 5, it will be seen that by reason of the plate 28and the cutting edge of the die |5 lying in inclined parallel planes,when the straight edge portions 20 of the cutting edge of the die strikethe supported sole 2|, the shoulders 24 (Fig. 4) formed thereby willextend rearwardly of the sole as they approach the flesh or upper sideof the sole. In the same way, the end of the tongue 23 will be beveledalso since the closed end of the loop portion 9 of the cutting edge cutsthe sole more or less transversely. This permits the end of the tongue23 to conform to the upward rise in the concavity at the rear of the topof the heel. The sides of the tongue 23 will not be beveled, but this isof no moment.

In view of the above description, little more need be said of the mannerof operation of the illustrated embodiment of the present invention. Theknob 39 may be set to gage the abutment 42 for a sole of a given lengtheither before or after the sole is mounted with its heel end engagingthe wall 45. Thereafter the knob 5| is turned to cause the pins 55 toengage the shank of the sole to gage it laterally. The forepart of thesole extends over the shaft 38 and the knob 39, and the operative holdsthe breast ,fiap 51 out of the path of the cutting die |5, as indicatedin Fig. 5. The plunger l2 of the press is actuated, whereupon the die l5descends and simultaneously cuts away the margin 22 of the heel portionof the sole to provide the heel seat 23 thereon and form the shoulders24 the beveled surfaces of which are adapted to engage the breast edgeof the top of the heel in the finished shoe.

Nothing herein explained is to be interpreted as limiting the inventionin the scope of its application to use in connection with the particularapparatus or the particular mode of operation or both selected forpurposes of illustration and explanation. While the particulars ofconstruction herein set forth are well suited to one mechanical form ofthe invention, it is not limited to these details'of construction, norto the conjoint use of all its features, nor is it to be understood thatthese particulars are essential since they may be variously modifiedwithin the skill of the artisan without departing from the true scope ofthe actual invention, characterizing features of which are set forth inthe following claims.

What is claimed as new, is:

1. In a heel-seat fitting machine, a table having a face for supportingthe heel-seat portion of a sole, a die having a U-shaped cutting edgeand a pair of edges which extend laterally of said U-shaped edge at itsrespective ends, and means for moving the die in a rectilinear pathextending toward and rearwardly of the heel-seat portion of the soleupon said face to reduce the heel-seat portion and to form a pair ofheelbreast receiving shoulders upon the same.

2. In a heel-seat fitting machine, a table for supporting the heel-seatportion of a sole, gages for positioning the heel end of the sole uponthe table, a die having a U-shaped cutting edge for reducing theheel-seat portion of the sole and having a pair of shoulder-formingedges which are angularly disposed to the respective ends of theU-shaped cutting'edge, and means for moving the die in a rectilinearpath inclined to the surface of the table and extending toward andrearwardly of the heel-seat portion of the sole supported by said tableto reduce the heel-seat portion of the sole and to form upon the same apair of heel-breast receiving shoulders which are inclined lengthwise ofthe sole. 7

3. In a heel-seat fitting machine, a table having a flat face forsupporting a sole, gages for positioning the heel end of the solelengthwise and widthwise upon the table, a die mounted for movement in apath inclined to said face of the table, said die having a U-shapedcutting edge and a pair of edges which formabrupt angles with therespective ends of the U-shaped cutting edge, and means for operatingthe die in said path to reduce the heel-seat portion of the sole for thereception of a heel and to form upon the sole heel-breast receivingshoulders which are inclined lengthwise of the sole, the cutting edgesof the die being disposed in a plane which face of the table as the diemoves in said path.

ADOLF SANCHIONI.

